Abstract The Big Five personality traits—conscientiousness, Extraversion, Openness to Experience, Agreeableness, and Neuroticism constitutes a comprehensive framework used to understand individual differences. In the context of marital satisfaction, the big five personality traits could play a significant role in influencing different aspects of marital life. The aim of the study was to understand the relationship between the Big Five Personality factors and marital satisfaction. The study also explored the differences between men and women in these variables. A total of 140 participants, including 70 married males and 70 married females aged 25 to 40, were selected for the study. Personality traits were assessed using the Big Five Inventory (BFI), and marital satisfaction was assessed using the Couple Satisfaction Inventory (CSI-32). Pearson's correlation method was used to analyze the relationships between personality traits and marital satisfaction. t-test test was used to analyze gender differences in personality traits and marital satisfaction. Conscientiousness and extraversion showed positive correlations with marital satisfaction, suggesting that individuals with these traits can experience higher levels of contentment in their marriages. However, neuroticism exhibited a significant negative correlation, suggesting that emotional instability may contribute to lower marital satisfaction. Further analysis of gender differences showed a significant difference between men and women in the variable agreeableness. There were no substantial variations in any other personality traits or marital satisfaction between men and women. Keywords: Marital Satisfaction, Big Five Personality Traits, Openness to experience, Conscientiousness, Extraversion, Agreeableness, Neuroticism.